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flare star |
Also found in: Dictionary/thesaurus, Wikipedia | 0.03 sec. |
flare starStar that varies in brightness repeatedly but sporadically, sometimes by more than one magnitude, within a few minutes. The cause is thought to be the eruption of flares like those observed on the Sun but much larger (see solar flare). Proxima Centauri, in Alpha Centauri, the closest star to the Sun, is a flare star. |
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Thus, proof of common lineage and similar age between Proxima and Alpha might encourage astrophysicists to rethink their ideas about flare stars, Matthews says. In analyzing their discovery, the observers rule out possible foreground objects in our own galaxy, such as flare stars, asteroids and dwarf novas, on grounds that the object, though variable, does not vary quickly enough for a flare star. |
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Flare stars
